Universal replacement pad: 4.7 inch self-gripping replacement pad with 4 screw holes and 8 dust holes, fits most sander back pads. Centered approximately 1 to 1/4 inch from the pad screw holes. Suitable for sanders with 4 screws. If your sander is not one of the listed makes or models, please verify compatibility using the following specifications: 4.7 inch diameter, 8 dust holes, 4 screw holes, and center-to-center hole distance of 1-1/4 inch. High-quality material: these disc sander pads are made of rubber with a smooth, durable surface that provides long-lasting performance and is ideal for sanding flat surfaces. Easy to assemble: built-in mounting threads allow for quick and secure installation, saving time and effort during replacement. Extends the life of your sander: package includes 2 x 8-hole sander pads, providing sufficient quantity for personal use and replacements, helping to maintain optimal sander performance.